JP3178085B2 - Detergent composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition, and more particularly, to a low-irritant, high-foaming, elastic, creamy foam, having an appropriate viscosity, and stable over time. The present invention relates to a cleaning composition having good properties.

[0002]

2. Description of the Related Art In recent years, consumers have become more conscious of safety due to changes in their lifestyles, and there has been a demand for a detergent composition having low irritation such as "friendly to hair and skin".
Attempts have been made to use hypoallergenic surfactants as such detergent compositions, and examples of such surfactants include acylalkyltaurine salt type anionic surfactants.

As a detergent composition using an acylalkyltaurine salt type anionic surfactant, a detergent composition comprising a combination of a betaine aminoacetate type amphoteric surfactant and an alkanolamide (JP-B-59-42038) Gazette), N- (2-alkyl-2-hydroxyethyl)-
Detergent composition in combination with N-methylaminoethanol phosphate salt (Japanese Patent Publication No. 2-26672),
Detergent composition in which amine oxide and alkanolamide are combined (Japanese Patent Publication No. 2-26673), and detergent composition in which an amide betaine-type amphoteric surfactant and alkanolamide are combined (Japanese Patent Publication No. 2-26677). , A detergent composition comprising an amide amino acid type amphoteric surfactant and an alkanolamide (JP-A-60-1)
68795) and the like.

[0004]

In a detergent composition using an acylalkyltaurine salt type anionic surfactant, the viscosity is so low that it easily runs off when picked up.
Alternatively, there is a disadvantage that the sense of quality is poor. When the viscosity is adjusted using a viscosity modifier, for example, an inorganic salt such as sodium chloride, the stability over time of the detergent composition decreases. Further, in a detergent composition using an acylalkyltaurine salt type anionic surfactant, foaming properties can be obtained by combining the surfactant with another surfactant or the like, but the foam is coarse and has no elasticity. An object of the present invention is to provide a detergent composition which is hypoallergenic, has excellent foaming properties, provides elastic creamy foam, has an appropriate viscosity, and has good stability over time. I do.

[0005]

The present invention provides the following a),
b) and c), wherein a) + b) + c) is 10 to 30% by weight, the weight ratio of a) to b) + c) is 1/5 to 3/1, and the weight of b) and c) A cleaning composition, wherein the ratio is from 5/1 to 1/5. a) an acylalkyltaurine salt type anionic surfactant represented by the formula (1) b) an amide amino acid type amphoteric surfactant represented by the formula (2) or (3) c) an amino acid represented by the formula (4) Betaine acetate type amphoteric surfactant or amido betaine type amphoteric surfactant represented by formula (5)

[0006]

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[0007]

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[0008]

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[0009]

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[0010]

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The acylalkyltaurine salt type anionic surfactant represented by the formula (1) of a) has an aliphatic acyl group in which R ¹ CO has 10 to 22 carbon atoms, such as a lauroyl group, a myristoyl group, Palmitoyl group, stearoyl group, oleoyl group, cocoyl group and the like can be mentioned. When the number of carbon atoms is 9 or less, irritation to hair and skin is increased, and when the number of carbon atoms is 23 or more, foaming property is reduced. R ² is an alkyl group having 1 to 3 carbon atoms, and examples thereof include a methyl group, an ethyl group, and a propyl group. Examples of M ¹ include lithium, sodium, potassium, マ グ ネ シ ウ ム magnesium, カ ル シ ウ ム calcium, ammonium, triethanol ammonium, diethanol ammonium, monoethanol ammonium and the like.

The amidoamino acid type amphoteric surfactants represented by the formula (2) or (3) in b) are R ³ CO, R ⁴ CO
Is an aliphatic acyl group having 10 to 22 carbon atoms, and examples thereof include a lauroyl group, a myristoyl group, a palmitoyl group, a stearoyl group, an oleoyl group, and a cocoyl group.
When the number of carbon atoms is 9 or less, irritation to hair and skin is increased, and when the number of carbon atoms is 23 or more, foaming property is reduced. Examples of M ² and M ³ include lithium, sodium, potassium, マ グ ネ シ ウ ム magnesium, カ ル シ ウ ム calcium, ammonium, triethanol ammonium, diethanol ammonium, monoethanol ammonium and the like. X is hydrogen or-
CH ₂ COOM ³ .

[0013] Amino acid betaine type amphoteric surfactants represented by the formula c) (4) is, R ⁵ is an alkyl or alkenyl group having 10 to 22 carbon atoms, such as lauryl group, myristyl group, palmityl group, Examples thereof include a stearyl group, an oleyl group, and a coconut oil alkyl group. When the number of carbon atoms is 9 or less, irritation to hair and skin is increased, and when the number of carbon atoms is 23 or more, foamability and stability over time are reduced. R ⁶ and R ⁷ are-
(CH ₂ CH ₂ O) _pH or an alkyl group having 1 to 3 carbon atoms, at least one of which is — (CH ₂ CH ₂ O) _pH .
p is 1 to 30, and the total number of —CH ₂ CH ₂ O— units in the formula (4) is preferably 30 or less.

The amidobetaine type amphoteric surfactant represented by the formula (5) of c) is an aliphatic acyl group having R ⁸ CO of 10 to 22 carbon atoms, for example, lauroyl group, myristoyl group, palmitoyl group, stearoyl. Group, an oleoyl group, a cocoyl group, etc. When the number of carbon atoms is 9 or less, irritation to hair or skin is increased, and when the number of carbon atoms is 23 or more, foaming property is reduced. R ^9, R ^{1 0} is - _{(CH 2 CH 2 O) q} H or an alkyl group having 1 to 3 carbon atoms, at least one -
(CH ₂ CH ₂ O) _q H. q is 1 to 30, the total number of -CH ₂ CH ₂ O-units in formula (5) is preferably 30 or less.

A) + b) + c) are from 10 to 30% by weight.
If it exceeds 300, the viscosity becomes high and the skin irritation becomes strong. The weight ratio of a) to b) + c) is 1/5 to 3/1. If a) is larger than this, the viscosity becomes lower and the elasticity of the foam becomes poor. When a) decreases, the foaming property decreases. The weight ratio of b) and c) is 5/1 to 1/5, but when b) is larger than this, the foaming property is reduced, and when b) is smaller, the viscosity is reduced.

[0016] The detergent composition of the present invention may contain, if necessary, components generally incorporated, for example, foaming agents such as fatty acids and higher alcohols, humectants such as glycerin and ethylene glycol, squalane, jojoba oil, olive oil and castor oil. , Lanolin, oils such as lecithin, cation-modified cellulose ether derivative, polyvinylpyrrolidone derivative quaternary ammonium salt, polyacrylic acid derivative quaternary ammonium salt,
Polyamide derivative quaternary ammonium salt, diallyl dimethyl ammonium chloride polymer, copolymer of diallyl dimethyl ammonium chloride and acrylamide, cationic polymer compound such as alkyl polyethylene imine, pearling agent such as diethylene glycol distearate, styrene polymer, sulfur Dandruff such as zinc pyrithione,
Fungicides such as paraoxybenzoate and sodium salicylate; tonics such as 5-methyl-2-isopropylcyclohexanol and pepper tincture; chelating agents such as ethylenediaminetetraacetic acid derivatives and citric acid; and ultraviolet rays such as benzophenone derivatives and benzotriazole derivatives. Absorbents, dyes, fragrances and the like can be contained in addition to the absorbents.

[0017]

EXAMPLES The present invention will be specifically described with reference to examples. Test methods and evaluation methods performed in the examples will be described below. (1) Skin irritation Evaluated by the protein denaturation rate. That is, using an aqueous high performance liquid chromatography,
Using a 5% by weight pH 7 buffer solution, a sample concentration of 1%
The height of the absorption peak at 220 nm was measured when the sample was added so that the protein denaturation rate was determined by the following equation. Protein denaturation rate = [(H0−HS) / H0] × 100 H0: height of absorption peak when no sample is added HS: height of absorption peak when sample is added In the following four steps according to protein denaturation rate evaluated. Very low skin irritation (Protein denaturation rate of less than 30%) Low skin irritation (Protein denaturation rate of 30% to less than 60%) Moderate skin irritation (Protein denaturation rate of 60% to less than 80%) Strong (80% or more protein denaturation rate)

(2) Viscosity Using a B-type viscometer (manufactured by Tokyo Keiki Seisakusho), 25
C., rotor No. 3, 30 rpm, the viscosity after 30 seconds was measured, and evaluated in the following three stages. High viscosity (6000 cps or more) Preferred viscosity (1500 cps to less than 6000 cps) Low viscosity (1000 cps to less than 1500 cps) Low viscosity (less than 1000 cps)

(3) Foaming property An aqueous solution having a sample concentration of 1% was prepared, and the foam height immediately after charging the sample at 25 ° C. was measured by the Rossmiles method, and evaluated by the following three steps. Good foaming property (bubble height 200 mm or more) Low foaming property (bubble height 150 mm or more and less than 200 mm) Low foaming property (foam height less than 150 mm)

(4) Creamy property of foam 20 women were used as panelists, 5 ml of the composition was put on a sponge for body shampoo lightly moistened with water, and the foam remaining on the hand and sponge after rubbing 10 times was visually observed. The foam was evaluated for creamy properties. 20 points when the foam was felt creamy and elastic, 2 points, 1 point when the foam was slightly coarse and less elastic, and 0 when the foam was coarse and less elastic, 20 points Find the average of the names
It was evaluated on a scale. Good creaminess (average value of 1.5 points or more) Not very creamy (average value of 0.5 points or more and 1.5 points)
No creaminess (less than 0.5 point on average)

(5) Stability over time The composition was stored at -5 ° C., 25 ° C., and 50 ° C. for one month, and its appearance was observed. ：: Good stability (transparent dissolved or slightly turbid, no change in appearance) △: Slightly poor stability (slightly turbid) ×: Poor stability (separation, aggregation and precipitation are observed)

Examples 1 to 12 and Comparative Examples 1 to 12 Detergent compositions having the compositions shown in Tables 1 to 3 were prepared and their performance was evaluated. The results are shown in Tables 1 to 3.

[0023]

[Table 1]

[0024]

[Table 2]

[0025]

[Table 3]

From Tables 1 to 3, it can be seen that the cleaning compositions of Examples 1 to 12 of the present invention have low irritation, excellent foaming properties, elastic and creamy foams, and moderate viscosity. Has,
It is clear that the stability over time is good. Comparative Example 1
Since the weight ratio of b) and c) exceeds 5/1, the detergent composition has low foamability. The cleaning composition of Comparative Example 2 has a low viscosity because the weight ratio of b) and c) is less than 1/5. The cleaning composition of Comparative Example 3 comprises a) and b) + c).
Is less than 1/5, the foaming property is low. The cleaning composition of Comparative Example 4 has a weight ratio of a) to b) + c) of 3
/ 1, the viscosity is low and the foam has poor creamy properties. The cleaning composition of Comparative Example 5 is a) + b) +
Since the total of c) is less than 10% by weight, the viscosity and the foaming property are low, and the creamy property of the foam is also poor. The detergent composition of Comparative Example 6 has a high protein denaturation rate and high viscosity because the sum of a) + b) + c) exceeds 30% by weight. In the cleaning composition of Comparative Example 7, the viscosity was increased by adding sodium chloride to Comparative Example 2 in which the weight ratio of b) and c) was less than 1/5 and the viscosity was low. Viscosity is not obtained and stability with time deteriorates. Although the preferred viscosity was obtained by increasing the amount of sodium chloride added to the detergent composition of Comparative Example 8, the stability over time was very poor. The cleaning composition of Comparative Example 9 used lauric acid diethanolamide instead of b), but had a low viscosity. The cleaning composition of Comparative Example 10 was
Although lauric acid diethanolamide was used in place of c), the foaming properties were low and the foam was poor in creaminess. The cleaning composition of Comparative Example 11 has a low viscosity because b) is not used. The detergent composition of Comparative Example 12 used b) and sodium polyoxyethylene (3 mol) lauryl ether sulfate, but the protein denaturation rate was high and the foam was poor in creaminess.

Example 13 A transparent hair shampoo composition was prepared according to the formulation shown in Table 4. When this transparent hair shampoo composition was evaluated, it was hypoallergenic, excellent in foaming properties, elastic and creamy foam was obtained, had an appropriate viscosity, and had good stability over time.

[0028]

[Table 4]

Example 14 A pearly hair shampoo composition was prepared according to the formulation shown in Table 5. When this pearl-like hair shampoo composition was evaluated, it was hypoallergenic, excellent in foaming properties, elastic and creamy foam was obtained, and had an appropriate viscosity and good stability over time. .

[0030]

[Table 5]

Example 15 A dandruff hair shampoo composition was prepared according to the formulation shown in Table 6. When this dandruff-removing hair shampoo composition was evaluated, it was hypoallergenic, excellent in foaming properties, an elastic creamy foam was obtained, and had an appropriate viscosity and good stability over time. .

[0032]

[Table 6]

Example 16 A tonic hair shampoo composition was prepared according to the formulation shown in Table 7. When this tonic hair shampoo composition was evaluated, it was hypoallergenic, excellent in foaming properties, elastic and creamy foam was obtained, had an appropriate viscosity, and had good stability over time.

[0034]

[Table 7]

Example 17 A body shampoo composition was prepared according to the formulation shown in Table 8. When this body shampoo composition was evaluated, it was found to have low irritation, excellent foaming properties, elastic and creamy foam, appropriate viscosity, and good stability over time.

[0036]

[Table 8]

Example 18 A dishwashing detergent composition was prepared according to the formulation shown in Table 9. When this dishwashing detergent composition was evaluated, it was hypoallergenic, excellent in foaming properties, an elastic creamy foam was obtained, and had an appropriate viscosity and good stability over time. .

[0038]

[Table 9]

[0039]

The cleaning composition of the present invention has low irritation,
Excellent foaming, elastic and creamy foam is obtained,
Since it has an appropriate viscosity and good stability over time, it can be used as a hair shampoo composition, a body shampoo composition, a dishwashing detergent and the like.

──────────────────────────────────────────────────続 き Continuation of the front page (51) Int.Cl. ⁷ Identification code FI C11D 1:10 1:90) (56) References JP-A-60-166875 (JP, A) JP-A-5-246829 (JP) JP-A-4-15298 (JP, A) JP-A-5-194985 (JP, A) JP-A-5-222398 (JP, A) JP-B-59-42038 (JP, B2) JP-B-58 2-26677 (JP, B2) (58) Field surveyed (Int. Cl. ⁷ , DB name) C11D 1/00-1/94 A61K 7/02 A61K 7/075 A61K 7/50

Claims (1)

(57) [Claims] (1) It contains the following a), b) and c), and a) +
b) + c) is 10 to 30% by weight, the weight ratio of a) and b) + c) is 1/5 to 3/1, and the weight ratio of b) and c) is 5
/ 1 to 1/5. a) an acylalkyltaurine salt type anionic surfactant represented by the formula (1) b) an amide amino acid type amphoteric surfactant represented by the formula (2) or (3) c) an amino acid represented by the formula (4) Betaine acetate type amphoteric surfactant or amide betaine type amphoteric surfactant represented by formula (5) Embedded image Embedded image Embedded image Embedded image